Ag修饰ZnO/MWCNT纳米颗粒的合成及其在亚甲基蓝降解中的应用

IF 1 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Digest Journal of Nanomaterials and Biostructures Pub Date : 2023-07-01 DOI:10.15251/djnb.2023.183.941

E. M. López Alejandro, E. Ramírez Morales, M. C. Arellano Cortaza, J. P. Morán Lázaro, G. Pérez Hernández, L. Rojas Blanco

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引用次数: 0

摘要

采用微波辅助、变电荷法合成了Ag-ZnO/MWCNT复合材料。通过XRD、SEM、TEM、N2物理吸附和UVVis对其结构、形貌和光学性能进行了表征。Ag离子和MWNTC的引入引起ZnO的结构张力和平均晶粒尺寸的变化。显微照片显示ZnO团聚体分布在MWNTC上，Ag颗粒沉积在异质结构表面，从而减小了能隙。在紫外和可见光辐射下，Ag-ZnO/CNT复合材料中亚甲基蓝的降解率分别为98%和75%。

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Synthesis of Ag-modified ZnO/MWCNT nanoparticles and their application as a catalyst in the degradation of methylene blue

Ag-ZnO/MWCNT composites were obtained by microwave-assisted, varying-charge synthesis of multiwalled carbon nanotubes (MWCNT). The structural, morphological and optical properties were characterized by: XRD, SEM, TEM, Physisorption of N2 and UVVis. The incorporation of Ag ions and MWNTC caused changes in the structure tension and in the average crystallite size of ZnO. The micrographs revealed that ZnO agglomerates were distributed on the MWNTC and that Ag particles were deposited on the surface of the heterostructure, thus the energy gap decreased. The percentages of degradation of methylene blue were 98 and 75% under ultraviolet and visible radiation, respectively, in the Ag-ZnO/CNT composites.

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